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$404+ Cheap flights from Ontario (ONT) to Northern Ireland

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/12. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BFS
jun. 21 — jun. 281
sáb. 6/21
sáb. 6/28
1 adult, Economy
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Cheap flight deals from Ontario to Northern Ireland

Keep the following information in mind while searching for Ontario to Northern Ireland flight deals. Data was last updated junio 16, 2025.

Round-trip from

$801
(KLM)

One-way from

$404
(Iberia)

Popular in

June

Cheapest in

November

Average price

$1,093
From Ontario to Northern Ireland
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One-way flight from Ontario to Northern Ireland
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Highest demand for flights based on searches. 16% potential increase in price ($165 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($24 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Ontario to Northern Ireland

Cheapest flights from Ontario to Northern Ireland
Explore the most affordable flight options available from Ontario to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 16, 2025.

This KLM deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/35:05 pmONT - BHD
2 stops15h 50mKLM
jue. 10/166:30 amBHD - ONT
2 stops17h 44mKLM
Deal found 6/15$801
This Ovago deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 7/144:45 pmONT - BHD
2 stops16h 45mBritish Airways
vie. 7/2511:55 amBHD - ONT
2 stops17h 43mBritish Airways
Deal found 6/15$1,274

Cheapflights Fare Finder

Customize your flight search to find flights from Ontario to Northern Ireland that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated junio 16, 2025.
Use the filters below to find and compare flights from Ontario to Northern Ireland that are best for you.

Fly from

Ontario

Fly to

Northern Ireland

Route

Depart

Return

Price

OntarioBelfast

ONT - BHD

ONTBHD

Ontario

vie. 10/3

5:05 pm-4:55 pm

2 stops15h 50m

Belfast City

jue. 10/16

6:30 am-4:14 pm

2 stops17h 44m

$801

OntarioBelfast

ONT - BHD

ONTBHD

Ontario

lun. 7/14

4:45 pm-5:30 pm

2 stops16h 45m

Belfast City

vie. 7/25

11:55 am-9:38 pm

2 stops17h 43m

$1,274

OntarioBelfast

ONT - BHD

ONTBHD

Ontario

dom. 10/12

8:44 am-11:30 am

2 stops18h 46m

$404

OntarioBelfast

ONT - BHD

ONTBHD

Ontario

mié. 7/30

10:53 am-11:55 am

2 stops17h 02m

$414

OntarioBelfast

ONT - BHD

ONTBHD

Ontario

dom. 7/27

5:09 pm-4:55 pm

2 stops15h 46m

$452

OntarioBelfast

ONT - BHD

ONTBHD

Ontario

vie. 8/1

6:10 am-9:25 am

2 stops19h 15m

$554

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/15

Best time to book a flight from Ontario to Northern Ireland

Have a flexible travel schedule? Discover the best time to fly to Northern Ireland from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Northern Ireland

What is the cheapest month to book a flight from Ontario to Northern Ireland?

Currently, February is the cheapest month in which you can book a flight from Ontario to Northern Ireland (average of $657). Flying from Ontario to Northern Ireland in June is currently the most expensive (average of $1,189). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Rainfall in Northern Ireland by month

Plan your trip to Northern Ireland by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Northern Ireland ranges from 2.0 - 3.5 inches per month. October is typically the wettest month, when rainfall can reach 3.5 in. April is typically the driest time to visit Northern Ireland when rainfall is around 2.0 in.

Temperature in Northern Ireland by month

Plan your trip to Northern Ireland by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Northern Ireland, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 60.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Northern Ireland

Get insights into the airlines that provide service to Northern Ireland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Northern Ireland. Reviews last updated junio 16, 2025.
KLM
7.8
Good
1,361 reviews

Boarding

7.8

Entertainment

7.1

Comfort

7.7

Food

7.2

Overall

7.8

Crew

8.4

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
KLM
7.8
Good
1,361 reviews
KLM
7.8
Good
1,361 reviews

Boarding

7.8

Entertainment

7.1

Comfort

7.7

Food

7.2

Overall

7.8

Crew

8.4

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
American Airlines
7.2
Good
10,000 reviews
KLM
7.8
Good
1,361 reviews

Boarding

7.8

Entertainment

7.1

Comfort

7.7

Food

7.2

Overall

7.8

Crew

8.4

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
Iberia
7.0
Good
2,778 reviews
KLM
7.8
Good
1,361 reviews

Boarding

7.8

Entertainment

7.1

Comfort

7.7

Food

7.2

Overall

7.8

Crew

8.4

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
British Airways
6.6
Okay
7,019 reviews
KLM
7.8
Good
1,361 reviews

Boarding

7.8

Entertainment

7.1

Comfort

7.7

Food

7.2

Overall

7.8

Crew

8.4

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Northern Ireland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Ontario to Northern Ireland?

    For a flight from Ontario to Northern Ireland, you will be flying from Ontario. Ontario (ONT) is just 3.1 mi from the center of the city.

  • What are the cheapest airlines to fly from Ontario to Northern Ireland one-way?

    One-way options have recently been found by users for as low as $404 on Iberia. Other airlines that offer cheap prices include British Airways from $414 and KLM from $452 one-way.

  • Can I find deals for flights from Ontario to Northern Ireland that include hotel bookings?

    Yes. In addition to deals on Ontario to Northern Ireland flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Northern Ireland?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Northern Ireland.

  • Can I find deals for business class flights from Ontario to Northern Ireland?

    Yes. Cheapflights offers flight deals from Ontario to Northern Ireland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ontario to Northern Ireland?

    Currently, February is the cheapest month in which you can book a flight from Ontario to Northern Ireland (average of $657). Flying from Ontario to Northern Ireland in June is currently the most expensive (average of $1,189). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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